The 1/4-28 Headless Flangeless Fitting is a durable, low-profile connector for low-pressure microfluidic systems. It is available in two sizes for tubing with 1/16" (1.6 mm) and 1/8" (3.2 mm) OD, and is sold in a convenient 10-pack.
General
This Headless Flangeless Fitting is a cost-effective solution designed to create a secure seal with rigid tubing for low-pressure applications. Manufactured entirely from Polypropylene (PP), this component is a reliable choice for fluidic systems where a broad range of chemical resistance and high biocompatibility are required, but at a lower cost than PEEK or other high-performance materials.
Features
- Headless Design: The headless design allows the fitting to be installed in very tight spaces or in high-density manifolds where a traditional nut would be difficult to reach. It requires a dedicated installation tool to be tightened, and when correctly installed, the fitting sits flush or below the surface of the port.
- Flangeless: This fitting creates a secure connection without requiring the end of the tubing to be flared or flanged. The PP ferrule provides a strong grip on the tubing, simplifying assembly and ensuring a leak-free seal.
- Polypropylene (PP) Construction: PP offers good chemical resistance to a wide range of organic solvents, acids, and bases. Its excellent biocompatibility makes it suitable for life sciences applications. While highly durable, it is not recommended for high-pressure systems.
Content
10x Headless Flangeless Fitting 1/4-28 (PP nut + PP ferrule) for 1/16" or 1/8" OD rigid tubing
Specifications
| SKU |
DM-ST-040 |
DM-ST-041 |
| Nut Material |
PP |
PP |
| Ferrule Material |
PP |
PP |
| Port Type |
1/4-28 (M) |
1/4-28 (M) |
| Recommended Tubing Material |
Rigid Tubing (PEEK, PTFE, etc.) |
Rigid Tubing (PEEK, PTFE, etc.) |
| Recommended Tube OD |
1/16" (1.6 mm) |
1/8" (3.2 mm) |
DM-ST-040
DM-ST-041
Documentation
Check the chemical compatibilities for this product here: PP - Chemical Compatibility Chart
